HD6473032F16 Datasheet, PDF (376/847 Pages) Renesas Technology Corp – Hardware Manual Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Series

Section 10 16-Bit Integrated Timer Unit (ITU)
• Examples of waveform output
Figure 10.20 shows examples of 0 and 1 output. TCNT operates as a free-running counter, 0
output is selected for compare match A, and 1 output is selected for compare match B. When
the pin is already at the selected output level, the pin level does not change.
TCNT value
H'FFFF
GRB
GRA
H'0000
TIOCB
No change
Time
No change 1 output
TIOCA
No change
No change
0 output
Figure 10.20 0 and 1 Output (Examples)
Figure 10.21 shows examples of toggle output. TCNT operates as a periodic counter, cleared
by compare match B. Toggle output is selected for both compare match A and B.
TCNT value
GRB
Counter cleared by compare match with GRB
GRA
H'0000
TIOCB
TIOCA
Figure 10.21 Toggle Output (Example)
Rev. 3.00 Mar 21, 2006 page 346 of 814
REJ09B0302-0300
Time
Toggle
output
Toggle
output